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Dense Undergrowth Reduces Feller-buncher Productivity in Shortleaf Pine Plantations

James E. GranskogSouthern Forest Experiment Station (New Orleans, La.)Walter C. Anderson

出版	Southern Forest Experiment Station, Forest Service, U.S. Department of Agriculture, 1981
URL	http://books.google.com.hk/books?id=0bs5mwEACAAJ&hl=&source=gbs_api